Disposable resuscitation device having unidirectional valve

Details Disposable resuscitation device having unidirectional valve Disposable resuscitation device having unidirectional valve

1994-05-24

1996-04-30

Lewis, Aaron J.

Surgery

Respiratory method or device

Means using rescuer's breath for supplying respiratory gas...

12820228, A61M 1600

Patent

active

055115438

ABSTRACT:
A device for preventing disease transmission during manual rescue breathing has a flexible sheet configured to cover a victim's mouth and nose and a body disposed centrally within the flexible sheet. The body has a first tube insertible within a rescuer's mouth and a second tube in fluid communication with the first tube insertible within the victim's mouth such that the first and second tubes define a first airway through the body. A one-piece duckbill check valve is disposed within the body along the air path such that fluid communication is provided from the first tube to the second tube and is inhibited from the second tube to the first tube. Thus, while the rescuer can easily blow air through the body into the victim's mouth to inflate the victim's lungs, the victim is incapable of blowing air back through the body into the rescuer's mouth, thus potentially exposing the rescuer to contagious diseases. The duckbill valve is preferably molded of a flexible polymer material and is of integral construction to lower costs, simplify construction, and improve reliability. At least one exhaust aperture is formed in the body to define a second air path along which air is exhausted by the victim to ensure effective and efficient exhausting of the victim's lungs and thereby enhance the rescue breathing process. A valve member formed upon the duckbill valve closes the exhaust apertures when the rescuer blows into the first tube and permits the exhaust apertures to open when the victim exhausts air into the second tube.

REFERENCES:
patent: 4819627 (1989-04-01), Connors
patent: 4819628 (1989-04-01), Eisenberg et al.
patent: 4858605 (1989-08-01), Levy
patent: 4909245 (1990-03-01), Wollenhaupt
patent: 4942873 (1990-07-01), Irwin et al.
patent: 4953831 (1990-09-01), Albrecht
patent: 4969456 (1990-11-01), Cooper
patent: 5088485 (1992-02-01), Schock
patent: 5119809 (1992-06-01), Gerson

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